title: Comorbidity of mental and physical disorders: a main challenge to medicine in the 21st century.
authors.forename: Norman
authors.initials: N
authors.lastname: Sartorius
mesh_terms: D002908:Chronic Disease / Q000453:epidemiology*; D015897:Comorbidity / Q000639:trends*; D006801:Humans; D001523:Mental Disorders / Q000453:epidemiology*